^ 1.01.1Hirsch, Donald; Kett, Joseph F.; Trefil, James S., The New Dictionary of Cultural Literacy, Houghton Mifflin Harcourt: 316, 2002, ISBN 0-618-22647-8, Eastern Bloc. The name applied to the former communist states of eastern Europe, including Yugoslavia and Albania, as well as the countries of the Warsaw Pact
^Satyendra, Kush, Encyclopaedic dictionary of political science, Sarup & Sons: 65, 2003, ISBN 81-7890-071-8, the countries of Eastern Europe under communism
^
对比:
Janzen, Jörg; Taraschewski, Thomas. Shahshahānī, Suhaylā , 编. Cities of Pilgrimage. Iuaes-series 4. Münster: LIT Verlag. 2009: 190 [2012-12-21]. ISBN 9783825816186. Until 1990, despite being a formally independent state, Mongolia had de facto been an integral part of the Soviet dominated Eastern Bloc.|pages=和|page=只需其一 (帮助)